Isabelle \i-sa-belle, isab(el)-le\ as a girl's name is a variant of Elizabeth (Hebrew) and Isabel (Hebrew), and the meaning of Isabelle is "God's promise; God is my oath".

The baby name Isabelle sounds like Isabella, Izabelle, Isobelle, Isabell, Isabele and Ysabelle. Other similar baby names are Yzabelle, Ysabella, Sabelle, Izabella, Isobella, Isobell, Isabela, Rosabelle and Ysabell.